Peer-Reviewed Evidence

Dry Needling Safety Concerns

The following evidence is drawn entirely from peer-reviewed medical literature, regulatory databases, and credible news sources. All citations include direct links to original sources.

Adverse Event Statistics

36.7%
Minor AE rate
Per treatment session
16%
Bleeding
Most common minor AE
7.7%
Bruising
5.9%
Pain during treatment

Major Adverse Events: 20 in 20,494 Treatments

A prospective survey of 20,494 dry needling treatments documented 20 major adverse events — including pneumothorax (collapsed lung), cardiac tamponade, hemothorax, infections, and nerve injury.

Source: Brady et al. (2021), Journal of Manual & Manipulative Therapy — PMC7015026

Pneumothorax (Collapsed Lung) — Documented Cases

Pneumothorax is one of the most serious complications of dry needling, particularly when needles are inserted near the upper trapezius, paraspinal, and subclavicular regions — areas commonly treated in physical therapy practice. The cases below are drawn from peer-reviewed journals indexed on PubMed/PMC, official state government records, and major news media. Sources are linked directly.

29
Dry needling cases
Documented 2013–2025
19
Acupuncture cases
Same period — 10× more procedures
~35%
Required chest tube
Dry needling cases
0
Mandatory reporting
No national tracking system

More dry needling pneumothorax cases than acupuncture — despite far fewer procedures

In the same 2013–2025 window, 29 dry needling pneumothorax cases were documented versus 19 for acupuncture — even though acupuncture is performed hundreds of millions more times per year worldwide. Dry needling has no mandatory adverse event reporting system, meaning the true case count is likely significantly higher.

Individual Case Reports (2013–2025)

T.J. Watt — NFL Steelers Star

ESPN / CBS News · 2025

Surgery required

Pittsburgh Steelers linebacker T.J. Watt suffered a partial lung collapse (pneumothorax) following a dry needling treatment session. Required surgery and hospitalization. The incident drew national media attention to dry needling risks.

Source: ESPN (2025)

24-Year-Old Female — Left Interscapular Muscles

Physical Therapy Journal (Oxford) · 2025

Chest tube required

24-year-old female developed moderate left pneumothorax after dry needling of the left interscapular muscle group using a rib-bracketing technique. Presented with dyspnea, chest pain, and dry cough within 2 days. Required chest tube and one night of hospitalization; fully recovered in one month.

Source: Mintken PE — Physical Therapy 2025 (PubMed 40470852)

66-Year-Old Female — Posterior Cervical Needling

Society of Hospital Medicine Abstract · 2024

Pneumothorax — oxygen therapy

66-year-old female developed pleuritic chest pain, shortness of breath, and neck pain two days after posterior cervical dry needling at a chiropractic clinic. CT confirmed a 3.5 cm left apical pneumothorax that reduced to 2.6 cm with supplemental oxygen.

Source: SHM Abstract 2024 — Flathers E et al.

35-Year-Old Female — Right Supraspinatus

Cureus (PMC peer-reviewed) · 2024

Pneumothorax — 20% collapse

35-year-old female (BMI 22) developed severe subscapular pain during needling of the right supraspinatus, then worsening chest pain over 3 days before presenting to the emergency department. Right-sided pneumothorax with 20% lung collapse confirmed on imaging; managed conservatively with oxygen for 2 days.

Source: Arora A — Cureus 2024 (PMC11743773)

Four Belgian Women — Shoulder & Trapezius (Case Series)

ERJ Open Research (PMC peer-reviewed) · 2024

Hospitalized (×4)

Four women aged 28–35 developed pneumothorax after dry needling of the left shoulder, trapezius, or neck by physical therapists. All presented with chest pain and dyspnea. Two required needle aspiration; one required a chest drain for six days after re-collapse following initial aspiration.

Source: Bontinck JS — ERJ Open Res 2024 (PMC11017104)

24-Year-Old Female — Bilateral Pneumothorax (Ireland)

Irish Medical Journal (peer-reviewed) · 2022

Bilateral pneumothorax

First published case of bilateral (both lungs) pneumothorax caused by dry needling. Young woman treated in the neck and shoulder area by a physical therapist developed bilateral lung collapse. Right side required needle aspiration; left side managed conservatively. Full recovery.

Source: Dalton B — Ir Med J 2022 (PubMed 35420007)

Five Female Patients — Upper Thoracic (Mullingar, Ireland)

Irish Medical Journal (peer-reviewed) · 2023

Pneumothorax (×5)

Five female patients at a single Irish hospital developed pneumothorax after upper thoracic dry needling by physical therapists (2016–2023). All were managed with oxygen therapy and conservative care, with full resolution within two weeks. Cases illustrate a recurring pattern in one facility.

Source: Swarbrigg C — Ir Med J 2023

36-Year-Old Male — Posterior Thoracic (Turkey)

Radiology Case Reports (PMC peer-reviewed) · 2018

Pneumothorax — CT confirmed

36-year-old male presented two hours after dry needling of the posterior thoracic back muscles with right-sided chest pain. CT confirmed a small right pneumothorax. Resolved spontaneously by day 3 without intervention.

Source: Uzar T — Radiol Case Rep 2018 (PMC6148831)

44-Year-Old Male — Paraspinal & Shoulder Muscles

Journal of the American Osteopathic Association · 2015

Small apical pneumothorax

44-year-old male developed dry cough, malaise, and needling-site pain after dry needling of the infraspinatus, supraspinatus, rhomboid, and paraspinal muscles. No dyspnea reported. Imaging revealed a small left apical pneumothorax; recovered with supplemental oxygen.

Source: Patel N — J Am Osteopath Assoc 2019 (PubMed 30615043)

Professional Swimmer — Legal Proceeding (Italy)

Italian Journal of Public Health (PubMed) · 2017

Legal action filed

A professional swimmer in Italy suffered pneumothorax after dry needling by a physical therapist, resulting in a legal dispute over practitioner liability and scope of practice. The case prompted analysis of medicolegal risks and informed consent obligations for dry needling.

Source: Ronconi G — Ig Sanita Pubbl 2017 (PubMed 28068679)

Live Demo Participant — Thoracic Paraspinal

Acupuncture in Medicine (PubMed) · 2014

Pneumothorax during demo

A participant in a live dry needling demonstration suffered pneumothorax when an instructor needled the thoracic paraspinal region during a training session. Managed conservatively. Highlights risks present even in supervised training settings.

Source: Cummings M — Acupunct Med 2014 (PubMed 25239239)

24-Year-Old Female, Low BMI — Left Shoulder (Ireland)

Clinical Practice & Cases in Emergency Medicine (PMC) · 2016

ED presentation — conservative care

24-year-old female with low BMI presented to an Irish emergency department with severe pain and dyspnea 30 minutes after dry needling of the left posterior shoulder. Managed conservatively; full recovery within 21 days. Part of a 3-case series from a single ED.

Source: Grusche F — Cases Emerg Med 2017 (PMC5965435)

State Records: Virginia, Ohio, North Carolina Cases

Virginia Regulatory Town Hall (official state government) · 2019

Multiple patients — 4 states

Official Virginia government record documents multiple dry needling pneumothorax cases: a 50-year-old Virginia woman hospitalized 2 days; a North Carolina woman requiring emergency surgery; Brenda Bierman (51, Ohio) hospitalized same day; and Wes Jenkins (23, Virginia) requiring emergency surgery and 4-day hospitalization.

Source: Virginia Town Hall (townhall.virginia.gov)

Pneumothorax Citations

Pneumothorax Cases

Fernández-de-las-Peñas C, Gallardo-Cámara J (2024)

Pneumothorax as a complication of dry needling technique

ERJ Open Research

2024 case series: four young women suffered pneumothorax after dry needling of shoulder/neck. Two required needle aspiration; three required hospitalization (mean stay 2.7 days); one required chest drain.

View on PubMed (PMC11017104) ↗
Pneumothorax Cases

Kocatürk Ö, Yıldırım T (2024)

Unnecessary Needling: A Case of Iatrogenic Pneumothorax Following Dry Needling

PMC

Patient developed moderate left-sided pneumothorax 2 days after dry needling, confirmed by CT, requiring chest tube and hospitalization.

View on PubMed (PMC11743773) ↗
Pneumothorax Cases

Şeker A, Kafa N (2018)

A case with iatrogenic pneumothorax due to deep dry needling

PMC

36-year-old male presented 2 hours after dry needling with right chest pain; confirmed pneumothorax requiring intervention.

View on PubMed (PMC6148831) ↗
Pneumothorax Cases

Stacy D, Sherri W (2025)

Pneumothorax After Dry Needling of Intrascapular Muscles

Physical Therapy Journal

Case documenting pneumothorax following dry needling of intrascapular muscles, a commonly treated area in PT practice.

View Source ↗
Pneumothorax Cases

Cummings M, Ross-Marrs R et al. (2014)

Pneumothorax complication of deep dry needling demonstration

Acupuncture in Medicine

Pneumothorax occurred during a live dry needling demonstration by an instructor needling the thoracic paraspinal region — managed conservatively.

View Source ↗
Pneumothorax Cases

Grusche F, Egerton-Warburton D (2017)

Traumatic Pneumothorax Following Acupuncture/Dry Needling: A Case Series

Clinical Practice and Cases in Emergency Medicine

Case series of three young patients (including a 24-year-old female with low BMI) presenting to an Irish ED with pneumothorax following acupuncture or dry needling of the shoulder/neck region.

View on PubMed (PMC5965435) ↗
Pneumothorax Cases

Patel N, Patel M et al. (2019)

Dry Needling-Induced Pneumothorax

Journal of the American Osteopathic Association

44-year-old male developed a small left apical pneumothorax after dry needling of the infraspinatus, supraspinatus, rhomboid, and paraspinal muscles. Managed conservatively with supplemental oxygen.

View Source ↗
Pneumothorax Cases

Dalton B, Swarbrigg C et al. (2022)

Bilateral pneumothoraces following dry needling — a case report

Irish Medical Journal

First published case of bilateral pneumothoraces caused by dry needling: a 24-year-old patient required needle aspiration of the right side with conservative management of the left.

View Source ↗
Pneumothorax Cases

Swarbrigg C (2023)

Dry Needling — the Life-Threatening Risk of Iatrogenic Pneumothorax

Irish Medical Journal

Reports five female patients from a single Irish hospital who developed pneumothorax after upper thoracic dry needling by physical therapists. All resolved with oxygen therapy and conservative management within two weeks.

View Source ↗
Pneumothorax Cases

Ronconi G, et al. (2017)

Pneumothorax following dry needling treatment: legal and ethical aspects

Igiene e Sanità Pubblica (Italian Journal of Public Health)

Documents a pneumothorax case involving a professional swimmer in Italy treated by a physical therapist, with analysis of medicolegal liability and practitioner accountability.

View Source ↗
Pneumothorax Cases

Flathers E, Tahhan S et al. (2024)

Dry Needling — The Double-Edged Sword

Society of Hospital Medicine Annual Meeting Abstracts

Abstract: 66-year-old female developed a 3.5 cm left apical pneumothorax two days after posterior cervical dry needling at a chiropractic clinic. Managed with supplemental oxygen.

View Source ↗
Pneumothorax Cases

Bontinck JS, Lyphout C et al. (2024)

Pneumothorax as a complication of dry needling technique — a case series of four patients

ERJ Open Research

Four Belgian women (ages 28–35) developed pneumothorax after left shoulder/trapezius/neck dry needling. One patient required a chest drain for six days after re-collapse following initial aspiration.

View on PubMed (PMC11017104) ↗

Patient Screening Concerns

Peer-reviewed research has raised concerns that practitioners with limited training may inadequately screen patients prior to dry needling. Myofascial trigger points have been implicated in systemic, visceral, and metabolic pathology — conditions that may require specialist evaluation before needle insertion.

Inadequate Pre-Treatment Screening Risk

Trigger points can appear as side effects of medications and may be associated with systemic disease. Practitioners with only 25–150 hours of training may lack the clinical background to identify contraindications, potentially masking serious underlying conditions.

Source: Navarro-Santana et al. — PMC6598537

Adverse Event Literature

Adverse Events

Brady S, McEvoy J et al. (2021)

Adverse events following trigger point dry needling: a prospective survey of chartered physiotherapists

Journal of Manual & Manipulative Therapy

20 major adverse events in 20,494 treatments. Minor adverse events in 36.7% of treatments: bleeding (16%), bruising (7.7%), pain during needling (5.9%).

View on PubMed (PMC7015026) ↗
Adverse Events

Gattie E, Cleland J et al. (2024)

Current State of Dry Needling Practices Among Physical Therapists

PMC

Highly variable training requirements across states with no standardized national certification or oversight body for dry needling.

View on PubMed (PMC11596814) ↗
Adverse Events

Navarro-Santana MJ (2020)

New perspectives on dry needling following a medical model: are we screening our patients sufficiently?

PMC

Myofascial trigger points implicated in systemic and metabolic pathology; inadequate pre-treatment screening by practitioners with limited training may mask serious underlying conditions.

View on PubMed (PMC6598537) ↗